A013620 - OEIS

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A013620 as a triangular array

1

2 3

4 12 9

8 36 54 27

16 96 216 216 81

32 240 720 1080 810 243

64 576 2160 4320 4860 2916 729

128 1344 6048 15120 22680 20412 10206 2187

256 3072 16128 48384 90720 108864 81648 34992 6561

512

A013620 as a square array

`1`	`2`	`4`	`8`	`16`	`32`	`64`	`128`	`256`	`512`
`3`	`12`	`36`	`96`	`240`	`576`	`1344`	`3072`
`9`	`54`	`216`	`720`	`2160`	`6048`	`16128`
`27`	`216`	`1080`	`4320`	`15120`	`48384`
`81`	`810`	`4860`	`22680`	`90720`
`243`	`2916`	`20412`	`108864`
`729`	`10206`	`81648`
`2187`	`34992`
`6561`

A013620 as an upper right triangle

`1`	`2`	`4`	`8`	`16`	`32`	`64`	`128`	`256`	`512`
	`3`	`12`	`36`	`96`	`240`	`576`	`1344`	`3072`
		`9`	`54`	`216`	`720`	`2160`	`6048`	`16128`
			`27`	`216`	`1080`	`4320`	`15120`	`48384`
				`81`	`810`	`4860`	`22680`	`90720`
					`243`	`2916`	`20412`	`108864`
						`729`	`10206`	`81648`
							`2187`	`34992`
								`6561`

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)